Check-row corn-planter



(No Model.) 2 Sheets-Sheet 2.

G. MQGORMIGK 85B; T. MGGLAIN.

- GHEGK ROW CORN PLANTBR. v No. 347,362. Patented Aug. 17, 1886.

6%.@ y VM 1f/4 ....m ff M r MM f, Me/w UNITED STATES PATENT OFFICE.

GEORGE MGCORMIOK AND ROBERT T. MOOLAIN, OF FAIRFIELD, IOlVA.

CHECK-Row coRN-PLANTER.

SPECIFICATION forming part of Letters Patent No. 347,362, dated August 17, 1886. r

Application filed April 1, 1856. Serial No. 197,471. (No model.)

' 1880, and also for which the said Richard E.

' openi ugs.

Caviness and George McCormick obtained Letters Patent` No. 271,419, of date January 30, 1883, of which the following` is a full, clear, and exact description.

Our invention relates to check-row cornplanters; and it consists in certain details ofcoustruction and operation of the several parts, as will be hereinafter more fully described in the specification and pointed out in the ac` l companying drawings. in which- Figure 1 is an end view ofthe device; Fig. 2, a side elevation of same; and Fig. 3, a detail view of the ball on the chain, which operates to turn the shaft connected with the seed-dropping slide. Figs. 4 and 5 are modifications of the device for actuating the seeddropping slide.

The object of the invention is to provide a checkroW corn-planter ol' the kind that are operated to drop the seed by means of a line stretched across the field.

Referring more particularly to the drawings, the runners A are attached to the seedbox M, the bottom of which is provided with openings for the seed to fall to the ground,k

and a slide to alternately open and close said A cover, D, closes the top ol" the seed box or receptacle M. Two or more uprights, I, are secured to the top ol' the box M and form bearings for a longitudinal shaft, J, the outer ends of which have arms K, made in two parts, the outer or free ends being bent outwardly, as at It, for a purpose which willY be hereinafter explained. At the outer end of each side ofthe seed-box, an arm, E, rises, which is bent outwardly and upwardly, and then downwardly, as shown in Fig. 1, and has pivoted in its upper bent end two grooved pulleys, G, through which the chain H passes. This chain has secured to it at fixed intervals a ball, R, having a -circumferential groove, r, in which the chain or wire H is bent, and is thus held firmly and securely in place. On

the shaft Jis placed a beveledwheel, L,which meshes with a corresponding beveled gearwheel, N, secured to shaft T, which actuates the crank-arms t t', and this lat-ter actuates the slide o. The wheel L is provided on one side with cams L', that rest normally in contact with the spring-pressed bolt B, which prevents thekuotted rope from carrying the shal't J too far after the knot has passed out of the forked arm K, thereby preventing irregularity in planting.

The operation is as follows: As the planter moves across the lield,the balls R come in contact with the forked arms K, and catch in the bent ends k and lil't orturn the arm. This turns f the shaft I, which, through the intervention of the meshing-gear L N, shalt T, and crankarms t t', operates the slide o lo open it. When this movement is completed, the slide again covers the opening in the seed-box, and is prevented from becoming accidentally displaced by llIe spring-pressed bolt B impiuging against the cams L on the wheel L. These balls are placed at predetermined row-intervals, and as the arms are moved, as described, the valve or slide n is alternately opened and closed at these determined distances or intervals, thus giving accurate cheek-rows. The wire or chain H is stretched across thejeld in the usual manner.

Ve are aware that it is not broadly new for arresting the intermittent rotation of the driving-shalt al'ter the knot has passed out ofthe forked arms, and hence restrict ourl claim to the precise construction.

Having thus described ourinventiou,what we claim as new, and desire to secure by Letters Patent, is

In a check-row coruplanter, the bent bar E, of the construction shown, having grooved pulleysjournaled therein, in combination with operating-shalt J, carrying outwardly-bent forked arms K, gear-wheel L, provided with cam L', spring-pressed bolt 15 gear-wheel N, shaft T, crankarm il t', and seed-slide V, all substantially as shown and described.

GEORGE MGCORMICK. ROBERT T. MCOLAIN. Vitnesses:

`J. B. MILLER, M. WESTENHAVER. 

